. >> as america grow heavier so does our idea of the ideal weight. the average adult weighs 176-pounds, up 15 pounds from 1990. the average female weighs 156 pounds, average man, 196 pounds. of the 65% of people who admit being overweight, quart are of them are trying to lose the extra pounds. >> nasa will announce news about a discovery on mars in little more than a week in san francisco. nasa scientist say the curiosity rover found something interesting in the soil. they wouldn't say what it is. they will say it will be one for the history books. right now they're double-checking their data to make sure it's correct. the announcement will be made the american geo physical union meeting. >>> still to come, the biggest youtube video ever. and, the abc-7 news i-team looks into the risk of international adoption. we'll hear from a family who claims they adopted family from an asylum not knowing it. >> leigh: starting to see quite a bit of low cloudiness and fog that could slow down your travel >> ama: families across the country have trust of trusted a